package com.example.demo.test;


import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;

import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.security.MessageDigest;
import java.util.HashMap;
import java.util.Map;

/**
 * 快递鸟物流轨迹即时查询接口
 *
 * @技术QQ群: 456320272
 * @see: http://www.kdniao.com/YundanChaxunAPI.aspx
 * @copyright: 深圳市快金数据技术服务有限公司
 * <p>
 * DEMO中的电商ID与私钥仅限测试使用，正式环境请单独注册账号
 * 单日超过500单查询量，建议接入我方物流轨迹订阅推送接口
 * <p>
 * ID和Key请到官网申请：http://www.kdniao.com/ServiceApply.aspx
 */

public class KdniaoTrackQueryAPI {
	
	//DEMO
	public static void main(String[] args) {
		KdniaoTrackQueryAPI api = new KdniaoTrackQueryAPI();
		try {
			String result = api.getOrderTracesByJson("YTO", "888417590153315095");
			System.out.println(result);
			System.out.println("----------------------------------------------------------------------------------------------------------------------------------------");
			JSONObject object = JSONObject.parseObject(result);
			object.forEach((k, v) -> {
				System.out.println(k + " : " + v);
				if ("Traces".equals(k)) {
					System.out.println("------物流信息---begin------");
					JSONArray jsonArray = JSONObject.parseArray(v.toString());
					jsonArray.forEach(i -> {
						JSONObject jsonObject = (JSONObject) i;
						jsonObject.forEach((a, b) -> {
							System.out.println(a + " : " + b);
						});
					});
					System.out.println("------物流信息---end------");
				}
			});
			
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	//电商ID
	private String EBusinessID = "1324214";
	//电商加密私钥，快递鸟提供，注意保管，不要泄漏
	private String AppKey = "a265443e-111c-4e8b-b4d0-b18b40a4b7df";
	//请求url
	private String ReqURL = "http://api.kdniao.cc/Ebusiness/EbusinessOrderHandle.aspx";
	
	/**
	 * Json方式 查询订单物流轨迹
	 *
	 * @throws Exception
	 */
	public String getOrderTracesByJson(String expCode, String expNo) throws Exception {
		String requestData = "{'OrderCode':'','ShipperCode':'" + expCode + "','LogisticCode':'" + expNo + "'}";
		
		Map<String, String> params = new HashMap<String, String>();
		params.put("RequestData", urlEncoder(requestData, "UTF-8"));
		params.put("EBusinessID", EBusinessID);
		params.put("RequestType", "1002");
		String dataSign = encrypt(requestData, AppKey, "UTF-8");
		params.put("DataSign", urlEncoder(dataSign, "UTF-8"));
		params.put("DataType", "2");
		
		String result = sendPost(ReqURL, params);
		
		//根据公司业务处理返回的信息......
		
		return result;
	}
	
	/**
	 * MD5加密
	 *
	 * @param str     内容
	 * @param charset 编码方式
	 *
	 * @throws Exception
	 */
	@SuppressWarnings("unused")
	private String MD5(String str, String charset) throws Exception {
		MessageDigest md = MessageDigest.getInstance("MD5");
		md.update(str.getBytes(charset));
		byte[] result = md.digest();
		StringBuffer sb = new StringBuffer(32);
		for (int i = 0; i < result.length; i++) {
			int val = result[i] & 0xff;
			if (val <= 0xf) {
				sb.append("0");
			}
			sb.append(Integer.toHexString(val));
		}
		return sb.toString().toLowerCase();
	}
	
	/**
	 * base64编码
	 *
	 * @param str     内容
	 * @param charset 编码方式
	 *
	 * @throws UnsupportedEncodingException
	 */
	private String base64(String str, String charset) throws UnsupportedEncodingException {
		String encoded = base64Encode(str.getBytes(charset));
		return encoded;
	}
	
	@SuppressWarnings("unused")
	private String urlEncoder(String str, String charset) throws UnsupportedEncodingException {
		String result = URLEncoder.encode(str, charset);
		return result;
	}
	
	/**
	 * 电商Sign签名生成
	 *
	 * @param content  内容
	 * @param keyValue Appkey
	 * @param charset  编码方式
	 *
	 * @return DataSign签名
	 *
	 * @throws UnsupportedEncodingException ,Exception
	 */
	@SuppressWarnings("unused")
	private String encrypt(String content, String keyValue, String charset) throws UnsupportedEncodingException,
			Exception {
		if (keyValue != null) {
			return base64(MD5(content + keyValue, charset), charset);
		}
		return base64(MD5(content, charset), charset);
	}
	
	/**
	 * 向指定 URL 发送POST方法的请求
	 *
	 * @param url    发送请求的 URL
	 * @param params 请求的参数集合
	 *
	 * @return 远程资源的响应结果
	 */
	@SuppressWarnings("unused")
	private String sendPost(String url, Map<String, String> params) {
		OutputStreamWriter out = null;
		BufferedReader in = null;
		StringBuilder result = new StringBuilder();
		try {
			URL realUrl = new URL(url);
			HttpURLConnection conn = (HttpURLConnection) realUrl.openConnection();
			// 发送POST请求必须设置如下两行
			conn.setDoOutput(true);
			conn.setDoInput(true);
			// POST方法
			conn.setRequestMethod("POST");
			// 设置通用的请求属性
			conn.setRequestProperty("accept", "*/*");
			conn.setRequestProperty("connection", "Keep-Alive");
			conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
			conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
			conn.connect();
			// 获取URLConnection对象对应的输出流
			out = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");
			// 发送请求参数
			if (params != null) {
				StringBuilder param = new StringBuilder();
				for (Map.Entry<String, String> entry : params.entrySet()) {
					if (param.length() > 0) {
						param.append("&");
					}
					param.append(entry.getKey());
					param.append("=");
					param.append(entry.getValue());
					//System.out.println(entry.getKey()+":"+entry.getValue());
				}
				//System.out.println("param:"+param.toString());
				out.write(param.toString());
			}
			// flush输出流的缓冲
			out.flush();
			// 定义BufferedReader输入流来读取URL的响应
			in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));
			String line;
			while ((line = in.readLine()) != null) {
				result.append(line);
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		//使用finally块来关闭输出流、输入流
		finally {
			try {
				if (out != null) {
					out.close();
				}
				if (in != null) {
					in.close();
				}
			} catch (IOException ex) {
				ex.printStackTrace();
			}
		}
		return result.toString();
	}
	
	
	private static char[] base64EncodeChars = new char[] {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L',
			'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
			'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1',
			'2', '3', '4', '5', '6', '7', '8', '9', '+', '/'};
	
	public static String base64Encode(byte[] data) {
		StringBuffer sb = new StringBuffer();
		int len = data.length;
		int i = 0;
		int b1, b2, b3;
		while (i < len) {
			b1 = data[i++] & 0xff;
			if (i == len) {
				sb.append(base64EncodeChars[b1 >>> 2]);
				sb.append(base64EncodeChars[(b1 & 0x3) << 4]);
				sb.append("==");
				break;
			}
			b2 = data[i++] & 0xff;
			if (i == len) {
				sb.append(base64EncodeChars[b1 >>> 2]);
				sb.append(base64EncodeChars[((b1 & 0x03) << 4) | ((b2 & 0xf0) >>> 4)]);
				sb.append(base64EncodeChars[(b2 & 0x0f) << 2]);
				sb.append("=");
				break;
			}
			b3 = data[i++] & 0xff;
			sb.append(base64EncodeChars[b1 >>> 2]);
			sb.append(base64EncodeChars[((b1 & 0x03) << 4) | ((b2 & 0xf0) >>> 4)]);
			sb.append(base64EncodeChars[((b2 & 0x0f) << 2) | ((b3 & 0xc0) >>> 6)]);
			sb.append(base64EncodeChars[b3 & 0x3f]);
		}
		return sb.toString();
	}
}
